As a researcher, you are charged with determining the side effects of a new drug. From previous
observations, you suspect that this drug reduces the rate of DNA production (replication) within skin
cells of patients using the drug. With the following materials, design an experiment that would answer
your questions about the effect of the drug on DNA production. You know that: DNA contains
phosphate groups. You have: radioactive isotopes of phosphate (32P), skin cell cultures from various
patients, the drug in question, and a device that measures radioactivity. What will be an ideal response?
Concepts to Consider: Construction of an appropriate experiment with appropriate controls; use of
the radioisotope to label DNA; isolation of the DNA using an unspecified technique; measuring
radioactivity of the isolated DNA; comparing the treatment and control groups; making a conclusion.
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Populations that are geographically separated from one another are called ____
Fill in the blank with the appropriate word.
Which of the following organisms would NOT be classified in the Domain Eukarya?
A. Canis lupis (wolf). B. Loxodonta cyclotis (forest elephant). C. Salmonella enterica (bacteria that causes food poisoning). D. Aleuria aurantia (ascomycete fungi). E. Sequoiadendron giganteum (Giant Sequoia tree).
An increase in soil acidity is responsible for releasing soluble aluminum, which can be toxic to plant roots
Indicate whether the statement is true or false
Cycles of fever, chills, anemia and headache along with passage of dark colored urine are the symptoms of infection with
A) yellow fever virus. B) P. vivax. C) P. ovale. D) P. falciparum. E) dengue virus.